HLA-B27 antigen ► Infectious Arthritis

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Infectious Arthritis Update

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HLA-B27 antigen

02/03/2014 03:43 PM EST

HLA-B27 antigen

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HLA-B27 is a blood test to look for a protein that is found on the surface of white blood cells. The protein is called human leukocyte antigen B27 (HLA-B27).

Human leukocyte antigens (HLAs) are proteins that help the body's immune system tell the difference between its own cells and foreign, harmful substances.

See also: Histocompatibility antigen test

MedlinePlus Topics

• Ankylosing Spondylitis
• Arthritis
• Organ Transplantation

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• Ankylosing spondylitis
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• Histocompatibility antigen test
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